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Chronic smokers often have difficulty breathing because they develop Chronic Obstructive Pulmonary Disorder, or COPD. The two diseases that fall under that category are emphys â¦ ema and chronic bronchitis.
Smoking causes chronic inflammation to the bronchi, lungs and other organs of the respiratory system resulting in increased bouts of cough necessary to clear out the lungs. If you suffer from acute or chronic bronchitis you can try some bronchitis natural remedies that may also alleviate excessive mucus problem.